/**
 *    Copyright (C) 2008, 2009  Victor Smirnov <aist11@gmail.com>
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License along
 *    with this program; if not, write to the Free Software Foundation, Inc.,
 *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 *    See LICENSE.exceptions in the root folder of this project for possible
 *    exceptions
 *
 */

#ifndef _CUBEFS_API_METADATA_GROUP_HPP
#define _CUBEFS_API_METADATA_GROUP_HPP

#include <cubefs/api/metadata/metadata.hpp>

namespace cubefs    {
namespace api       {

struct CUBEFS_API MetadataGroup: public Metadata {
    virtual Int Size() const   = 0;
    virtual Metadata* GetItem(Int idx) const  = 0;

    static Type* MyType();
};

inline bool isGroup(Metadata *meta) {
    Int type = meta->GetTypeCode();
    return type == Metadata::GROUP || type == Metadata::CONTAINER || type == Metadata::MODEL ||
        type == Metadata::PAGE;
}

CUBEFS_DECLARE_TYPENAME(MetadataGroup,    "cubefs::api::metadata::MetadataGroup");

}}

#endif
